To cite this page, please use the following:
· For print: Citation: AntWeb. Version 8.65.1. California Academy of Science, online at https://www.antweb.org. Accessed .
· For web:
Natural History: Also relatively common and well-known, the habits of N. opacithorax are quite similar to those of N. nigrescens. Males are bicolored, black with a reddish-brown gaster, and may be seen flying on calm, cool, sunny, late summer or early fall days.
|Neivamyrmex opacithorax||Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: -1, (download)||-1||21008|
|Neivamyrmex opacithorax||Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550: 486-487, (download)||486-487||21290|
Found most commonly in these habitats: 2 times found in oak pine juniper woodland, 1 times found in grazed creosote desert, 2 times found in swamp forest, 1 times found in pine-oak forest, 1 times found in in mature sand pine forest, 1 times found in Sand Pine Scrub with Oak, 1 times found in Larrea desert, 1 times found in serpentine chaparral, 1 times found in leaf litter, 0 times found in at base of oak, ...
Found most commonly in these microhabitats: 3 times under stone, 1 times raiding column, 2 times under rock, adjacent to old stump, 2 times sample from tree base, 1 times raiding columns, 1 times in dead wood below ground, 1 times under rock, 1 times old sawdust amid slabs, north side of pile, 1 times night collecting; foraging column, 1 times in ant colony refuse under stone, 1 times ground foragers, ...
Collected most commonly using these methods: 3 times search, 3 times direct collection, 1 times Search, subterranean raid, 2 times Berlese, 1 times general collecting, 1 times Malaise trap.
Elevations: collected from 6 - 1960 meters, 1416 meters average
Collect Date Range: collected between 1891-07-01 and 2019-05-31
Type specimens: syntype of Eciton californicum opacithorax: casent0903735